Permanent wave heating machine



FIG. 1 is a top plan view of a permanent wave heating machine showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a cross section thereof taken on line 5--5 of FIG. 2. 

The ornamental design for a permanent wave heating machine, as shown. 